<template>
  <view>
    <view class="login-container">
      <uni-icons type="contact-filled" size="100" color="#afafaf"></uni-icons>
      <button type="primary" class="btn-login" @click="getUserProfile">一键登录</button>
      <text class="tips-text">登录后尽享更多权益</text>
    </view>
  </view>
</template>

<script>
  import { mapState, mapMutations } from 'vuex'
  export default {
    name:"my-login",
    data() {
      return {
        
      };
    },
    computed: {
      ...mapState('m_user', ['redirectInfo'])
    },
    methods: {
      ...mapMutations('m_user', ['updateUserInfo', 'updateToken', 'updateRedirectInfo']),
      // 获取微信用户的基本信息
     async getUserProfile() {
      const res = await uni.getUserProfile({
          desc: '您的授权信息',
          success: (res) => {
            // console.log(res);
            // console.log(res.userInfo)
            this.updateUserInfo(res.userInfo)
            this.getToken(res)
          },
          fail: (res) => {
            return uni.$showMsg('您取消了登录授权')
          }
        })
      },
      // 调用登录接口，换取永久的 token
     async getToken(info) {
       // 调用微信登录接口
       const [err, res] = await uni.login().catch(err => err)
       // console.log(res);
       console.log(info);
       if(err || res.errMsg !== 'login:ok') return uni.$showMsg('登录失败!')
       // 准备参数对象
       const query = {
         code: res.code,
         encryptedData: info.encryptedData, 
         iv: info.iv,
         rawData: info.rawData,
         signature: info.signature,
       }
       // console.log(query);
        // 换取 token
        const { data: loginResult } = await uni.$http.post('/api/public/v1/users/wxlogin', query)
        console.log(loginResult);
        if (loginResult.meta.status === 200) return uni.$showMsg('登录失败！')
          uni.$showMsg('登录成功')
          // 直接把token保存到vuex中
         // this.updateToken(loginResult.message.token)
        this.updateToken(
        "Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1aWQiOjIzLCJpYXQiOjE1NjQ3MzAwNzksImV4cCI6MTAwMTU2NDczMDA3OH0.YPt-XeLnjV-_1ITaXGY2FhxmCe4NvXuRnRB8OMCfnPo"
        )
        this.navigateBack()
      },
      navigateBack() {
        if(this.redirectInfo && this.redirectInfo.openType === 'switchTab') {
           // 调用小程序提供的 uni.switchTab() API 进行页面的导航
           uni.switchTab({
             url: this.redirectInfo.from,
             // 导航成功之后，把 vuex 中的 redirectInfo 对象重置为 null
             complete: () => {
               this.redirectInfo(null)
             }
           })
        }
      }
    },
  }
</script>

<style lang="scss">
.login-container {
    height: 750rpx;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: #f8f8f8;
    position: relative;
    overflow: hidden;
    
     // 绘制登录盒子底部的半椭圆造型
     &::after {
       content: '';
       display: block;
       overflow: hidden;
       position: absolute;
       background-color: #fff;
       width: 100%;
       height: 40px;
       left: 0;
       bottom: 0;
       border-radius: 100%;
       transform: translate(0, 50%);
     }
     
     
     
    .btn-login {
      width: 90%;
      border-radius: 100px;
      margin: 15px 0;
    }
  
  
    .tips-text {
      font-size: 12px;
      color: gray;
    }
  
}
</style>